Punching-machine



v. RICH. I PUNCHING MACHINE. APPLICATION men oicfla. 1919.

Patented June 28-, 1921.

V'. RICH.

PUNCHING MACHINE. APPLICATION man 0Ec. 1-s. 1919.

.PatentedJune 2 921.

2 SHEETS-S 2 To all whom it may concern:

I ATENT OFFICE} VERN RICH, OF MOUNT VERNON, SOUTH DAKQTA.

PUNCHING-MACHINE;

Application filed December 18, i519; Serial No, 345,817.

Beit known that I, VERN non, in the county of Davison, State of SouthDakota, have invented certain new and useful Improvements inPunching-Machines; and I do hereby declare the following to bea full,clear, and exact description of the invention, such as will enableothers skilled in the art tow-hich it appertains to make and use'thesame. V 1

This invention relates to new and useful improvements in punchingmachines. and particularly to metal punching machines.

One object of the present invention is to provide a novel and improvedmachineof this character whereby holes can be punched in v a sheet ofmetal at different equally spaced distances apart, accurately.

Another object is to provide a novel and improved-machine of thischaracter wherein means are provided by means of which the firsthole canbe properly punched so that the succeeding ones will be accuratelyspaced apart and from the edges of the sheet;

Other objects and advantages will be apparent from the followingdescriptionwhen.

taken in connection with the accompanying drawing.

In the drawing: Figure 1 is aside elevation of a punching machine madein accordance with my invention.

the'opening 13 in the upper portion'thereof which registers with theopening12,"for the- .Fig. 2'is a top plan view of the same.

Fig. 3 is an enlarged vertical longitudinal sectional view taken on theline 33 of Fig. 2, showing the adjustable gage block and pin carriedthereby.

Fig. 4 is a horizontal sectional view'taken on the line 4+4 of Fig-.1,showing the means for *gaginglthe back of the sheet of metal todetermine the distance from the saidblock havingthe usual opening 12, in

the lower portions ofv the bifurcation and passage therethrough of themale portion 14 of the die. 'Pivotally mounted on the upperSpecification of Letters Patent.

RICH, a citizen of the United States, residing at Mount Ver-' PatentedJune 28, 1921.

being made by the intermediate pivoted link 17 Pivotally mounted ontheupper portion of the stand is arearwardly extending arm 18 which ispivotally connected with the operating lever 16 by means of the link 19.

Pivotally mounted in the lower portion of the stand is a pedal lever 20which is connected to 'the'arm 18 by means of'the link 21, a spring 22being also connected to the pedal lever atone end while its other end isconnected to the upper end of the stand. Thus, when the pedal lever isdepressed, the lever 16 will be pulled down to rock the lever151and'force themale die through the metal sheet which is placed in thebifurcation vof'the block.

Secured to' the die block, within the bifurcation, is an angular stopplate 23 which has a longitudinally slotted arm 23 through Which isengaged the clamping screw 11 carried by thesupport of the die block,said plate being thus adjustable inwardly and outwardly so as toproperly gage the distance of thehole to be punched from the edge of thesheet. Adjustably carried by the otherarm of this plate is an angleplate 24, the laterally turned end 24: of which is disposed-forengagement by'the end of the metal sheet, forthe'purpose of gaging thedistance from the end of the sheet the-first hole is to be punched. Theplate 24 is longitudinally slotted and receives theclamping bolt 12 ofthe arm 23 of the plate 23.

Thus the positioning of the first hole can be accurately determined.

"Extending laterally from one sideof the lower portion of the die blockis an arm 25 having a longitudinally extending central slot 26..Slidably disposed in this slot is a gage block 27, a clamping bolt 28being carried by the block forholding the block at different adjusteddistances from the die block. Projecting from the upper face of thisgage blockis a pointed pin 29 which is adapted to be received in thesuccessive holes which are punched in thesheet, and whereby the ymnohed,the act of punching a series of holes in a plate can be quickly andaccurately done.

When it is desired to gage the distances of holes in a circular line thegage block 27 is removed and the angle plate 30 substituted. This platehas a longitudinal slot 31 in one of its arms for the reception of theadjustable pin block 32. The other arm has slotted arm toward and awayfrom the die "and having one of its arms slotted, and 'a block having avertical pin and slidably adjustable on the slotted arm of the angleplate.

In a punching machine, male and fe male dies, the. female die having alaterally extending and longitudinally slotted arm, an angle plate onthe slotted arm and slidably adjustable therealong toward and away fromthe female die, the transverse arm of the angle plate beinglongitudinally slotted,

and a block adjustable longitudinally inthe slot of the said transversearm toward and away from the first slotted arm;

3; In a Work guide for a punching machine, the combination with the maleand female dies of the machine, of an angle plate having alongitudinally slotted arm-engaged with one side face of the support ofthe male die and the other arm extending across the adjacent meetingface of said support, a screw in the support and engaging inthe slot ofthe arm, and a plate having one end turnedlaterally and adjustablelongitudinally on'the said other arm'of the angle Plate. v v

- 7 In testimony whereof, I affix my signature in the presence oftwovvitnesses.

VERN RICH.

W'itnesses: V i V :E,D. GOLTINGHAM,

Annrn BROMWELL.

